How long is the flight from Region of Ontario to Missouri?

The average flight duration from Region of Ontario to Missouri depends on which airport you fly into and out of. Flying from Toronto to St. Louis is 2h 05m on average, while flying from Ottawa to St. Louis is 6h 01m on average. St. Louis is the most popular airport in Missouri.

How many flights depart from Region of Ontario to Missouri on average per week?

28 flights are operational weekly from Region of Ontario to Missouri as of September 2026. The most popular departure day for this route is Mon, with 14% of flights per week taking off on this day.

Which airlines fly to Missouri?

Air Canada, United Airlines and WestJet are the top three most popular airlines that fly to Missouri from Region of Ontario according to our data. Air Canada is the first choice among our users, with 44% of people opting to fly with this airline when travelling to Missouri. Keep in mind that there are 5 different airlines that fly to Missouri on a routine basis, so you have a few additional options to choose from.

How many flights depart from Region of Ontario to Missouri on average per day?

As of September 2026, 4 flights take off from Region of Ontario and land in Missouri each day. The most common flight departure time for this route is 12:00p.m., with 50% of daily flights taking off in the afternoon.

What is the cheapest airline that flies from Ontario to Missouri?

American Airlines, Delta, and United Airlines are the most popular carriers operating from Ontario to Missouri

When did momondo last update prices for flights from Ontario to Missouri?

Prices for flights from Ontario to Missouri are refreshed on a daily basis.

How many operators does momondo search for flights from Ontario to Missouri?

There are 5 operators available for flights from Ontario to Missouri as of September 2026.

How old do you have to be to fly from Ontario to Missouri?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Ontario to Missouri.

What documentation or ID do you need to fly to Missouri?

The necessary travel and health documents for your Missouri trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

C$ 251 Cheap Flights from Ontario to Missouri in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Ontario to Missouri

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:29 a.m. - 4:53 p.m.YYZ Toronto Pearson Intl-STL Lambert-St Louis

10h 24m1 stop Chicago O'Hare Intl

7:28 a.m. - 5:44 p.m.STL Lambert-St Louis-YYZ Toronto Pearson Intl

9h 16m1 stop Chicago O'Hare Intl

C$ 448American Airlines

Tue, 20 Oct - Tue, 27 Oct

11:39 a.m. - 12:19 a.m.YYZ Toronto Pearson Intl-STL Lambert-St Louis

13h 40m1 stop Chicago O'Hare Intl

5:01 a.m. - 5:41 p.m.STL Lambert-St Louis-YYZ Toronto Pearson Intl

11h 40m1 stop Chicago O'Hare Intl

C$ 448American Airlines

Sat, 24 Oct - Sat, 14 Nov

8:35 p.m. - 7:48 p.m.YYZ Toronto Pearson Intl-MCI Kansas City

24h 13m2 stops Las Vegas Harry Reid Intl Denver Intl

9:36 a.m. - 10:55 p.m.MCI Kansas City-YYZ Toronto Pearson Intl

12h 19m1 stop Fort Lauderdale

C$ 564Multiple Airlines

Fri, 23 Oct - Fri, 6 Nov

12:20 p.m. - 9:58 a.m.YYZ Toronto Pearson Intl-SGF Springfield-Branson

22h 38m1 stop Tampa

4:30 p.m. - 1:40 p.m.SGF Springfield-Branson-YYZ Toronto Pearson Intl

20h 10m1 stop Orlando Sanford Intl

C$ 600Multiple Airlines

Mon, 2 Nov - Wed, 11 Nov

9:00 p.m. - 3:43 p.m.YYZ Toronto Pearson Intl-STL Lambert-St Louis

19h 43m1 stop Chicago O'Hare Intl

5:36 p.m. - 9:54 a.m.STL Lambert-St Louis-YYZ Toronto Pearson Intl

15h 18m1 stop Chicago O'Hare Intl

C$ 661United Airlines

Fri, 16 Oct - Mon, 19 Oct

5:15 p.m. - 3:43 p.m.YYZ Toronto Pearson Intl-STL Lambert-St Louis

23h 28m1 stop Chicago O'Hare Intl

1:29 p.m. - 11:26 p.m.STL Lambert-St Louis-YYZ Toronto Pearson Intl

8h 57m1 stop Chicago O'Hare Intl

C$ 661United Airlines

Fri, 16 Oct - Mon, 19 Oct

6:10 a.m. - 11:30 a.m.YYZ Toronto Pearson Intl-MCI Kansas City

6h 20m1 stop Atlanta Hartsfield-Jackson

5:31 p.m. - 11:57 p.m.MCI Kansas City-YYZ Toronto Pearson Intl

5h 26m1 stop Atlanta Hartsfield-Jackson

C$ 716Delta

Sat, 7 Nov - Sat, 14 Nov

5:15 p.m. - 11:39 p.m.YYZ Toronto Pearson Intl-MCI Kansas City

7h 24m1 stop Minneapolis St Paul

10:45 a.m. - 5:51 p.m.MCI Kansas City-YYZ Toronto Pearson Intl

6h 06m1 stop New York LaGuardia

C$ 719Delta

Tue, 22 Dec - Tue, 5 Jan

6:33 p.m. - 11:56 p.m.YYZ Toronto Pearson Intl-MCI Kansas City

6h 23m1 stop Atlanta Hartsfield-Jackson

5:31 p.m. - 11:59 p.m.MCI Kansas City-YYZ Toronto Pearson Intl

5h 28m1 stop Atlanta Hartsfield-Jackson

C$ 762WestJet

Sat, 17 Oct - Tue, 20 Oct

6:15 a.m. - 1:34 p.m.YYZ Toronto Pearson Intl-MCI Kansas City

8h 19m1 stop Atlanta Hartsfield-Jackson

2:39 p.m. - 11:59 p.m.MCI Kansas City-YYZ Toronto Pearson Intl

8h 20m1 stop Atlanta Hartsfield-Jackson

C$ 812WestJet

Thu, 8 Oct - Mon, 12 Oct

Cheap last-minute flights

Enter your travel dates to find the best prices.

12:55 p.m. - 2:00 p.m.YYZ Toronto Pearson Intl-STL Lambert-St Louis

2h 05mdirect

2:40 p.m. - 5:34 p.m.STL Lambert-St Louis-YYZ Toronto Pearson Intl

1h 54mdirect

C$ 845Air Canada

Wed, 30 Sep - Sat, 3 Oct

6:15 a.m. - 11:14 a.m.YYZ Toronto Pearson Intl-MCI Kansas City

5h 59m1 stop Atlanta Hartsfield-Jackson

6:34 a.m. - 1:36 p.m.MCI Kansas City-YYZ Toronto Pearson Intl

6h 02m1 stop Detroit Metropolitan Wayne County

C$ 858Delta

Mon, 28 Sep - Wed, 7 Oct

6:15 a.m. - 11:14 a.m.YYZ Toronto Pearson Intl-MCI Kansas City

5h 59m1 stop Atlanta Hartsfield-Jackson

6:34 a.m. - 1:36 p.m.MCI Kansas City-YYZ Toronto Pearson Intl

6h 02m1 stop Detroit Metropolitan Wayne County

C$ 859Delta

Mon, 28 Sep - Wed, 7 Oct

6:29 p.m. - 10:59 p.m.YYZ Toronto Pearson Intl-MCI Kansas City

5h 30m1 stop Charlotte Douglas

10:14 a.m. - 5:04 p.m.MCI Kansas City-YYZ Toronto Pearson Intl

5h 50m1 stop Charlotte Douglas

C$ 885American Airlines

Mon, 28 Sep - Wed, 7 Oct

6:29 p.m. - 10:59 p.m.YYZ Toronto Pearson Intl-MCI Kansas City

5h 30m1 stop Charlotte Douglas

10:14 a.m. - 5:04 p.m.MCI Kansas City-YYZ Toronto Pearson Intl

5h 50m1 stop Charlotte Douglas

C$ 905American Airlines

Mon, 28 Sep - Wed, 7 Oct

7:15 p.m. - 12:27 a.m.YYZ Toronto Pearson Intl-STL Lambert-St Louis

6h 12m1 stop Chicago O'Hare Intl

7:27 a.m. - 11:26 p.m.STL Lambert-St Louis-YYZ Toronto Pearson Intl

14h 59m1 stop Chicago O'Hare Intl

C$ 976Multiple Airlines

Fri, 25 Sep - Sat, 26 Sep

9:45 a.m. - 1:06 p.m.YYZ Toronto Pearson Intl-STL Lambert-St Louis

4h 21m1 stop Detroit Metropolitan Wayne County

2:00 p.m. - 9:55 p.m.STL Lambert-St Louis-YYZ Toronto Pearson Intl

30h 55m2 stops Jonesboro Nashville Intl

C$ 1,029Multiple Airlines

Tue, 29 Sep - Wed, 30 Sep

8:55 p.m. - 10:45 a.m.YYZ Toronto Pearson Intl-SGF Springfield-Branson

14h 50m2 stops Newark Chicago O'Hare Intl

6:25 p.m. - 11:59 p.m.SGF Springfield-Branson-YYZ Toronto Pearson Intl

4h 34m1 stop Chicago O'Hare Intl

C$ 1,106United Airlines

Fri, 25 Sep - Sun, 27 Sep

7:00 a.m. - 5:50 p.m.YYZ Toronto Pearson Intl-SGF Springfield-Branson

11h 50m1 stop Chicago O'Hare Intl

6:25 p.m. - 11:59 p.m.SGF Springfield-Branson-YYZ Toronto Pearson Intl

4h 34m1 stop Chicago O'Hare Intl

C$ 1,106United Airlines

Fri, 25 Sep - Sun, 27 Sep

7:15 p.m. - 8:20 p.m.YYZ Toronto Pearson Intl-STL Lambert-St Louis

2h 05mdirect

8:55 a.m. - 11:49 a.m.STL Lambert-St Louis-YYZ Toronto Pearson Intl

1h 54mdirect

C$ 1,415Air Canada

Sun, 27 Sep - Fri, 23 Oct

Cheap direct flights

Enter your travel dates to find the best prices.

12:55 p.m. - 2:00 p.m.YYZ Toronto Pearson Intl-STL Lambert-St Louis

2h 05mdirect

8:55 a.m. - 11:49 a.m.STL Lambert-St Louis-YYZ Toronto Pearson Intl

1h 54mdirect

C$ 827Air Canada

Thu, 15 Oct - Sun, 18 Oct

7:15 p.m. - 8:20 p.m.YYZ Toronto Pearson Intl-STL Lambert-St Louis

2h 05mdirect

2:40 p.m. - 5:34 p.m.STL Lambert-St Louis-YYZ Toronto Pearson Intl

1h 54mdirect

C$ 830Air Canada

Sat, 10 Oct - Sun, 11 Oct

7:15 p.m. - 8:20 p.m.YYZ Toronto Pearson Intl-STL Lambert-St Louis

2h 05mdirect

8:55 a.m. - 11:49 a.m.STL Lambert-St Louis-YYZ Toronto Pearson Intl

1h 54mdirect

C$ 830Air Canada

Thu, 15 Oct - Sun, 18 Oct

7:15 p.m. - 8:20 p.m.YYZ Toronto Pearson Intl-STL Lambert-St Louis

2h 05mdirect

4:05 p.m. - 6:59 p.m.STL Lambert-St Louis-YYZ Toronto Pearson Intl

1h 54mdirect

C$ 852Air Canada

Wed, 21 Oct - Wed, 28 Oct

12:55 p.m. - 2:00 p.m.YYZ Toronto Pearson Intl-STL Lambert-St Louis

2h 05mdirect

2:40 p.m. - 5:34 p.m.STL Lambert-St Louis-YYZ Toronto Pearson Intl

1h 54mdirect

C$ 985United Airlines

Thu, 15 Oct - Sun, 18 Oct

7:15 p.m. - 8:20 p.m.YYZ Toronto Pearson Intl-STL Lambert-St Louis

2h 05mdirect

4:05 p.m. - 6:59 p.m.STL Lambert-St Louis-YYZ Toronto Pearson Intl

1h 54mdirect

C$ 1,030United Airlines

Wed, 21 Oct - Wed, 28 Oct

7:15 p.m. - 8:20 p.m.YYZ Toronto Pearson Intl-STL Lambert-St Louis

2h 05mdirect

8:55 a.m. - 11:49 a.m.STL Lambert-St Louis-YYZ Toronto Pearson Intl

1h 54mdirect

C$ 1,033Multiple Airlines

Thu, 8 Oct - Sat, 10 Oct

7:15 p.m. - 8:20 p.m.YYZ Toronto Pearson Intl-STL Lambert-St Louis

2h 05mdirect

4:05 p.m. - 6:59 p.m.STL Lambert-St Louis-YYZ Toronto Pearson Intl

1h 54mdirect

C$ 1,034United Airlines

Tue, 20 Oct - Tue, 27 Oct

12:55 p.m. - 2:00 p.m.YYZ Toronto Pearson Intl-STL Lambert-St Louis

2h 05mdirect

2:40 p.m. - 5:34 p.m.STL Lambert-St Louis-YYZ Toronto Pearson Intl

1h 54mdirect

C$ 1,137Multiple Airlines

Fri, 9 Oct - Sun, 11 Oct

12:55 p.m. - 2:00 p.m.YYZ Toronto Pearson Intl-STL Lambert-St Louis

2h 05mdirect

2:40 p.m. - 5:34 p.m.STL Lambert-St Louis-YYZ Toronto Pearson Intl

1h 54mdirect

C$ 1,160Multiple Airlines

Fri, 9 Oct - Sun, 11 Oct

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Air Canada flights from Region of Ontario to Missouri

Our best Air Canada deals on Region of Ontario to Missouri flight tickets

Air Canada

15 Oct

YOW2:50 p.m.Ottawa

4h 51m

1 stop

STL6:41 p.m.Lambert-St Louis

19 Oct

STL2:40 p.m.Lambert-St Louis

5h 40m

1 stop

YOW9:20 p.m.Ottawa

C$ 841

Air Canada

30 Sep

YYZ12:55 p.m.Toronto Pearson Intl

2h 05m

STL2:00 p.m.Lambert-St Louis

3 Oct

STL2:40 p.m.Lambert-St Louis

1h 54m

YYZ5:34 p.m.Toronto Pearson Intl

C$ 845

Air Canada

16 Oct

YOW2:50 p.m.Ottawa

4h 51m

1 stop

STL6:41 p.m.Lambert-St Louis

26 Oct

STL4:05 p.m.Lambert-St Louis

6h 50m

1 stop

YOW11:55 p.m.Ottawa

C$ 851

American Airlines flights from Region of Ontario to Missouri

Our best American Airlines deals on Region of Ontario to Missouri flight tickets

American Airlines

20 Oct

YYZ7:29 a.m.Toronto Pearson Intl

10h 24m

1 stop

STL4:53 p.m.Lambert-St Louis

27 Oct

STL7:28 a.m.Lambert-St Louis

9h 16m

1 stop

YYZ5:44 p.m.Toronto Pearson Intl

C$ 448

American Airlines

14 Oct

YYZ1:15 p.m.Toronto Pearson Intl

8h 42m

1 stop

STL8:57 p.m.Lambert-St Louis

17 Oct

STL5:00 a.m.Lambert-St Louis

8h 33m

1 stop

YYZ2:33 p.m.Toronto Pearson Intl

C$ 464

American Airlines

22 Oct

YYZ1:15 p.m.Toronto Pearson Intl

8h 42m

1 stop

STL8:57 p.m.Lambert-St Louis

26 Oct

STL7:29 a.m.Lambert-St Louis

9h 15m

1 stop

YYZ5:44 p.m.Toronto Pearson Intl

C$ 465

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

TorontoSt. Louis

YYZ Toronto Pearson Intl - STL Lambert-St Louis

YYZSTL

Toronto Pearson Intl

Tue 20/10

7:29 a.m.-4:53 p.m.

1 stop10h 24m

Lambert-St Louis

Tue 27/10

7:28 a.m.-5:44 p.m.

1 stop9h 16m

C$ 448

TorontoSt. Louis

YYZ Toronto Pearson Intl - STL Lambert-St Louis

YYZSTL

Toronto Pearson Intl

Sat 24/10

11:39 a.m.-12:19 a.m.

1 stop13h 40m

Lambert-St Louis

Sat 14/11

5:01 a.m.-5:41 p.m.

1 stop11h 40m

C$ 448

TorontoKansas City

YYZ Toronto Pearson Intl - MCI Kansas City

YYZMCI

Toronto Pearson Intl

Fri 23/10

8:35 p.m.-7:48 p.m.

2 stops24h 13m

Kansas City

Fri 6/11

9:36 a.m.-10:55 p.m.

1 stop12h 19m

C$ 564

TorontoSpringfield

YYZ Toronto Pearson Intl - SGF Springfield-Branson

YYZSGF

Toronto Pearson Intl

Mon 2/11

12:20 p.m.-9:58 a.m.

1 stop22h 38m

Springfield-Branson

Wed 11/11

4:30 p.m.-1:40 p.m.

1 stop20h 10m

C$ 600

TorontoSt. Louis

YYZ Toronto Pearson Intl - STL Lambert-St Louis

YYZSTL

Toronto Pearson Intl

Fri 16/10

9:00 p.m.-3:43 p.m.

1 stop19h 43m

Lambert-St Louis

Mon 19/10

5:36 p.m.-9:54 a.m.

1 stop15h 18m

C$ 661

TorontoSt. Louis

YYZ Toronto Pearson Intl - STL Lambert-St Louis

YYZSTL

Toronto Pearson Intl

Fri 16/10

5:15 p.m.-3:43 p.m.

1 stop23h 28m

Lambert-St Louis

Mon 19/10

1:29 p.m.-11:26 p.m.

1 stop8h 57m

C$ 661

Quickest round-trip

TorontoKansas City

YYZ Toronto Pearson Intl - MCI Kansas City

YYZMCI

Toronto Pearson Intl

Sat 7/11

6:10 a.m.-11:30 a.m.

1 stop6h 20m

Kansas City

Sat 14/11

5:31 p.m.-11:57 p.m.

1 stop5h 26m

C$ 716

TorontoKansas City

YYZ Toronto Pearson Intl - MCI Kansas City

YYZMCI

Toronto Pearson Intl

Tue 22/12

5:15 p.m.-11:39 p.m.

1 stop7h 24m

Kansas City

Tue 5/1

10:45 a.m.-5:51 p.m.

1 stop6h 06m

C$ 719

TorontoKansas City

YYZ Toronto Pearson Intl - MCI Kansas City

YYZMCI

Toronto Pearson Intl

Sat 17/10

6:33 p.m.-11:56 p.m.

1 stop6h 23m

Kansas City

Tue 20/10

5:31 p.m.-11:59 p.m.

1 stop5h 28m

C$ 762

TorontoKansas City

YYZ Toronto Pearson Intl - MCI Kansas City

YYZMCI

Toronto Pearson Intl

Thu 8/10

6:15 a.m.-1:34 p.m.

1 stop8h 19m

Kansas City

Mon 12/10

2:39 p.m.-11:59 p.m.

1 stop8h 20m

C$ 812

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Region of Ontario to Missouri

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to Missouri?

The month of January is, on average, the cheapest month to fly to Missouri from Region of Ontario, with most prices found around C$ 593. If you are unable to visit Missouri during the month of January, then departing from Region of Ontario during the month February is also very affordable. Most momondo users find prices during this month for around C$ 624.

What is the cheapest Ontario to Missouri flight route?

Fly from Toronto Pearson Intl to Lambert-St Louis for the best Ontario - Missouri flight prices

What cabin class options are available on Region of Ontario to Missouri flights?

There are 3 cabin classes available to choose from on Region of Ontario to Missouri flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Region of Ontario to Missouri flights?

You could potentially save up to 6% on your flight if you consider stops on a Region of Ontario to Missouri flight.

Cheap Region of Ontario to Missouri flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Region of Ontario to Missouri

Best price found	C$ 251
Fastest flight time	2h 05m
Direct flights	Every day
Airports in Missouri	55 airports

The best one-way flight to Missouri from Region of Ontario in the past 72 hours is C$ 251. The best round-trip flight deal from Region of Ontario to Missouri found on momondo in the last 72 hours is C$ 448.

The fastest flight from Region of Ontario to Missouri takes 2h 05m

Direct flights go from Region of Ontario to Missouri every day.

There are 55 airports in Missouri. From Region of Ontario there are direct flights to Lambert-St Louis (STL).

Search flight deals

Frequently asked questions about flying from Ontario to Missouri

When did momondo last update prices for flights from Ontario to Missouri?
Prices for flights from Ontario to Missouri are refreshed on a daily basis.
How many operators does momondo search for flights from Ontario to Missouri?
There are 5 operators available for flights from Ontario to Missouri as of September 2026.
How old do you have to be to fly from Ontario to Missouri?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Ontario to Missouri.
What documentation or ID do you need to fly to Missouri?
The necessary travel and health documents for your Missouri trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Region of Ontario to Missouri?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Region of Ontario to Missouri is Canadair (Bombardier) Regional Jet 900 (56.86% of total bookings). The next most popular plane models are Embraer 175 (40.20%), Airbus A220-300 (1.96%), and Airbus A220 (0.98%).

Best airlines flying from Region of Ontario to Missouri

Compare and see reviews for airlines that fly from Region of Ontario to Missouri with momondo

Airline	Rating	Free Cancellation	Price
Air Canada	PriceFrom C$ 339	Free Cancellation	Rating 7.1 11,676 reviews	Search Air Canada flights
United Airlines	PriceFrom C$ 345	Free Cancellation	Rating 7.4 10,233 reviews	Search United Airlines flights
Delta	PriceFrom C$ 587	Free Cancellation	Rating 7.8 8,594 reviews	Search Delta flights
WestJet	PriceFrom C$ 631	Free Cancellation	Rating 7.2 3,448 reviews	Search WestJet flights
American Airlines	PriceFrom C$ 639	Free Cancellation	Rating 7.0 12,074 reviews	Search American Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to Missouri?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Missouri from Ontario.

Can I find flights from Ontario to Missouri with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Ontario to Missouri flights to just show those with flexible booking policies.

How can momondo help me find flights from Ontario to Missouri?

Once all potential Ontario to Missouri flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Ontario to Missouri right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Ontario to Missouri flights. All you need is a valid email address and we will do the rest; it is that quick and easy.